If you are having a miscarriage for one month and you have not had your period yet, it is possible that the cervical adhesions are causing the pain in the lower abdomen because the menstrual period is not being discharged. It is recommended to go to the hospital for examination. If there is fluid in the uterine cavity through ultrasound, which is mostly the cause, it is recommended to do cervical dilatation as soon as possible to separate the adhesive tissue, and the abdominal pain will be relieved soon after the menstruation is discharged. If menstruation has resumed after a month, lower abdominal pain is often caused by inflammation, such as pelvic inflammation, adnexal inflammation, endometrial inflammation, may lead to lower abdominal pain, through the gynecological examination can be clinically diagnosed accordingly. If inflammation of the uterine lining is suspected, diagnostic scraping is necessary to confirm the diagnosis before treatment.